Induction and phase-shifting rectifier transformer

A rectifier transformer, transformer technology, applied in the direction of transformer/inductor coil/winding/connection, preventing/reducing unwanted electrical/magnetic influence, etc. Effects of wave loss, harmonic loss reduction, and harmonic magnetic flux reduction
CN101877271AInactive Publication Date: 2010-11-03HUNAN UNIV +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV
Publication Date
2010-11-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an induction and phase-shifting rectifier transformer. The transformer is in a three-pole iron core structure, wherein each iron core pole is wound by four windings which include an AC line side winding, a filter winding, a valve side star-connected winding and a valve side delta-connected winding; the line side winding is arranged in the innermost layer of each iron core pole; the filter winding is arranged on the external layer of the line side winding; and the valve side star-connected winding and the valve side delta-connected winding are arranged on the external layer of the filter winding and respectively connected with a group of six-pulse rectifiers. The invention can counteract harmonic magnetomotive force generated by 5, 7, 11, 13, 17 and 19 characteristic harmonic currents of the transformer, thereby ensuring that the current in the line side winding is basically in a sine wave mode and greatly reducing the harmonic loss of the line side winding and other AC line side power equipment.
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Description

technical field

[0001] The invention relates to a rectifying transformer, in particular to an induction and phase-shifting rectifying transformer. Background technique

[0002] With the continuous development of my country's large-scale industrialization process, the capacity of rectification systems widely used in electrolysis, chemical industry, metallurgy and other industries is increasing, and these rectification systems mostly use nonlinear power electronic components such as thyristors or diodes. Electronic components will consume a large amount of reactive power during work and produce serious harmonic pollution. If effective harmonic control and reactive power compensation are not adopted, it will definitely bring serious harmonic pollution to the power system and affect the operation stability of the system. At present, in order to control harmonics and compensate reactive power, rectification systems in the above industries generally adopt two methods: (1) install ...

Claims

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